Results 71 to 80 of about 1,904 (164)
Edge-coloring vertex-weightings of graphs
Summary: Let \(G = (V (G), E(G))\) be a simple, finite and undirected graph of order \(n\). A \(k\)-vertex weighting of a graph \(G\) is a mapping \(w : V (G) \to \{1, \dots, k\}\). A \(k\)-vertex weighting induces an edge labeling \(f_w : E(G) \to \mathbb{N}\) such that \(f_w(uv) = w(u) + w(v)\). Such a labeling is called an edge-coloring \(k\)-vertex
Shiua, Wai Chee +2 more
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On Closed Modular Colorings of Trees
Two vertices u and v in a nontrivial connected graph G are twins if u and v have the same neighbors in V (G) − {u, v}. If u and v are adjacent, they are referred to as true twins; while if u and v are nonadjacent, they are false twins.
Phinezy Bryan, Zhang Ping
doaj +1 more source
Total dominator chromatic number of some operations on a graph
Let G be a simple graph. A total dominator coloring of G is a proper coloring of the vertices of G in which each vertex of the graph is adjacent to every vertex of some color class.
Nima Ghanbari, Saeid Alikhani
doaj
THE LOCATING RAINBOW CONNECTION NUMBERS OF LOLLIPOP AND BARBELL GRAPHS
The concept of the locating rainbow connection number of a graph is an innovation in graph coloring theory that combines the concepts of rainbow vertex coloring and partition dimension on graphs.
Ariestha Widyastuty Bustan +4 more
doaj +1 more source
The b$_q$-coloring of graphs [PDF]
Brice Effantin
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Author Correction: Vertex coloring of graphs via phase dynamics of coupled oscillatory networks. [PDF]
Parihar A +4 more
europepmc +1 more source
Vertex coloring of graphs via phase dynamics of coupled oscillatory networks. [PDF]
Parihar A +4 more
europepmc +1 more source
Interval Vertex-Coloring of a Graph With Forbidden Colors
The classical model of coloring the vertices of a graph with single colors so that no two adjacent vertices are colored the same is too limited to be useful in many practical applications. Therefore one must consider more general notions of graph coloring and this article is devoted to one of such generalizations.
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Automatically generated algorithms for the vertex coloring problem. [PDF]
Contreras Bolton C, Gatica G, Parada V.
europepmc +1 more source
Finite Vertex-Colored Ultrahomogeneous Oriented Graphs
A relational structure R is ultrahomogeneous if every isomorphism of finite induced substructures of R extends to an automorphism of R. We classify the ultrahomogeneous finite binary relational structures with one asymmetric binary relation and arbitrarily many unary relations.
Irene Heinrich +2 more
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